COILS

Coils combine an atomiser (used to heat up e-liquid), and a wick (which soaks up e-liquid) in a metal tube. One huge money saving innovation in recent years has been to introduced removable coils, which allow you to replace coils without having to buying a new clearomiser.

The life of a coil depends on the resistance rating (measured in ohms) and the voltage it is used at, and can vary from just a few days to about a month.